Humidifier



FIG. 1 is a top, front and left side perspective view of a humidifiershowing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

The broken line showing of environmental structure in FIGS. 1, 2, 3, 4,6, and 7 is for illustrative purposes only and forms no part of theclaimed design.

The ornamental design for a humidifier, as shown and described.